package storm.trident.operation.builtin;

import storm.trident.operation.BaseFilter;
import storm.trident.tuple.TridentTuple;


public class Equals extends BaseFilter {

    @Override
    public boolean isKeep(TridentTuple tuple) {
        for (int i = 0; i < tuple.size() - 1; i++) {
            Object o1 = tuple.getValue(i);
            Object o2 = tuple.getValue(i + 1);
            if (o1 == null && o2 != null || o1 != null && o2 == null || !o1.equals(o2)) {
                return false;
            }
        }
        return true;
    }

}
